1. Department of Dermatology The George Washington University School of Medicine and Health Sciences Washington DC USA
2. Department of Dermatology The Northwestern University Feinberg School of Medicine Chicago IL USA
3. Department of Dermatology Park Nicollet Health Services Minneapolis MN USA
4. Department of Dermatology University of Minnesota Minneapolis MN USA
5. Department of Dermatology Minneapolis Veterans Affairs Medical Center Minneapolis MN USA
6. Department of Dermatology University of California San Francisco San Francisco CA USA
7. Division of Dermatology Sunnybrook Health Sciences Centre University of Toronto ON Canada
8. Department of Dermatology Cleveland Clinic OH USA
9. Department of Dermatology Duke University Medical Center Durham NC USA
10. Division of Dermatology Montreal General HospitalMcGill University Montreal QC Canada
11. Department of Dermatology Dartmouth‐Hitchcock Medical Center Lebanon NH USA
12. Department of Dermatology University of Wisconsin School of Medicine and Public Health Madison WI USA
13. Division of Dermatology University of Louisville KY USA
14. Division of Dermatology University of Ottawa ON Canada
15. Associates in Dermatology Fort Myers FL USA
16. Department of Dermatology Ohio State University Columbus OH USA
17. Department of Dermatology Columbia University New York NY USA
18. Department of Dermatology Pennsylvania State University State College PA USA
19. Department of Dermatology Keck School of Medicine Los Angeles CA USA